Death records 1914 and later are at the New York Department of Health. This is their website Death Certificates - New York State Department of Health (ny.gov)
Dear Ms. Mohler,
Thank you for posting your request on History Hub!
Onondaga County is unusual in New York state because birth, and death records and some marriage records for Onondaga County are not on file with the County Clerk. Therefore, we suggest that you contact the Office of Vital Statistics in Syracuse to request the death certificate of Josephine Tropea/Tropia referencing the certificate number that you have obtained.
We also suggest that you review the FamilySearch Research wiki for Onondaga County Vital Records for more information.
We hope this is helpful. Best of luck with your research!